Improved roofing-bracket



- marked'thereon, in which- UNITED STATES PATENT OFFICE.

CHAS. A.IKIRKPATRICK, OF SOMERVILIJE, MASSACHUSETTS.

- IMPEQV'ED RogoFlNG-BRACKET.

Specification forming part of Letters Patent No. 18,SES, dated Jnly 18, 1865.

` clear, and exact description ot' the construction and-operation ot the same, reference'being had to the annexed drawings, making a part of this speciiieation, and also the letters of reference Figure V1 's a-representation of the invention applied to the roof. Fig. 2 isa `front view of same. Fig.`3 isa vertical section'of same. Fig.

. 4 is a side-'view of one of the roof brackets or studs.

A represents the ,whole machine.; 'a and b, the bottoniframe"tiinbers c cio c c., the braces; d, 'theping e, the uprightipost--ot the frame; ff, the roof-brackets; g, the ordinary staging; h, the roof` of a building t', Inortises for ends of studs ofthe roofbracket; n, tenon for mor- .tises t; o, rope for confming the bracket to the staging. ,f' y

Now,in order that others may better understand the nature and use of my invention7 I will proceed to explain its several parts, the mode of putting them together, and its practi caluse.

' Fig. 1 in the accompanying drawings represents the whole machinewith the roofbrackets as applied to the roof.

New, the machine as seen in Figs. 2 and 3 consists of the'several parts, to wit: the braces, (marked 6,) four of which are of equal length, and enter the bottom frame equidistant from thevertical post E, and enter mortises in same, and one larger braceentering near the top of the post and near the end vo f the bottom frame,

vall of which is clearlyisejen in Fig. 3; the bot- -com frame, consisting of two pieces ot' timber, a.

and b, crossing each other at right angles and at the center of each, al being the longer piece and the upright post E. The manner in which this post is made is seen in Fig. 3. It will also be noticed that there is a bolt projecting from its lowerjeud, and a screw and nut, and that its sides at right angles to the bottom piece, a, and the end through which the bolt passes are protected by a metal plate to give it strength;

but a piece or iron or meta-l connected with the screwin one piece and fastened tothe end may be used. The wood or material ofwhich the bottom pieces are made is eut into or mortised, so that the nut'and screw do notproject below the bottom of the pieces. N o'w,then, to put this together I put the bottom pieces together, put

the Aupright post with its bolt through them,

and the braces in position. I then turn thenut upon the screw and all the parts are brought tightly together. So, also, after the machine,

has been used and I wish to take it apart, so that I may have it in convenient compass for transportation, [have only toturn'the nut from the screw, take the upright post at the upper end and lift itv up,'and it falls apartat once.- 'Ihese pieces of timber of which the machine is .composed may be made of any convenient size,

so that it it shall be of sufficient strength. 'Ihe upright post and the bottom pieces should be of greater strength than-thefbraees.- Common spruce studs or joists are of suieient size for convenience and strength butl any wood. or

material which will answer the purpose-mtend-V ed may be used. It will be further noticed in this upright post that there are mortises, as at v t, made so as to admit a teuon.

Fig. 4 also consists of asimplejoist of the size' .i of the braces, or any convenient size. At one end it has thetenon n to lit a inortise, as at t'.

At the other end ithas awing of atriangular` shape, littel into thejoist .by screws or nails.,

-There is als'oditted .into this endbya dovetail mortise,,which will allow it to. ble takenout at pleasure, a short brace, the purpose of which is to give steadiness 'to the bracket las itlies on the roofof the building. -Upon this ring also.

piece, o, near the end, as seen in Fi 1, nexi'rfg1 to the building. I alsojdrive avnlail intothe" under side ofthe ordinary stagingg, andfast'en After 'a few courses l Off;

by a rope or chain,`o.

shingles or slates are laid on the roof, or a-suf. ticient number to need a ne'wstaging', Ifad'justj Athe machine as seen at Fig. 1, using one at? each post of the ordinary staging. I then take the roof-bracketf and tit it into the ,mortisefl in the upright post, and bit will adjust itself to the slant of' the roof, and upon this I place theA when the staging is to be removed, is very likely to render the roof leaky by leaving holes7 or by splitting or otherwise injuring` the shingles or other roofing materials. My invention does not require new lumber every time a roofis to be covered. These brackets, Well made, will y last along time. After the roofis covered they can very easily and quickly be taken down,

While the old or ordinary mode requires much By being made in this way the machine time. may be taken apart readily and easily transport-ed. .Indeed machines or brackets snidcient' for covering the roof of any building may be carried in a common wheelbarrow.' So that I claim by using my invention the roofer may economize time,v labor, materials, and safety.

What I claim as my invention,and desire to' secure by Letters Patent, is- A A bracket or machine. constructed substantially as above described, and for the purpose set forth.

C. A. KIRKPAIRICKi Witnesses:

` J. L. NEWTON,

G. L. VEsTY. 

